axios see an error message in response to a request error.response.message

axios printing error just returns an error, the specific error message does not return json format. Error.response need to format the return.
As shown below:

After printing can return error.response follows:

tenant_userAdd(data).then(response => {
    console.log(response)
    this.$message.success('提交成功');
 }).catch(error => {
    console.log(error.response.message);
 })